They are very good match bullets. They'll outperform a Sierra 168, wind-drift wise. They might be somewhat fussier (than a Sierra) to get a really great load established.
H1000 is too slow for a .308 Win case and a 168 bullet, but IMR 4064 is great (in fact it's pretty much a classic combination). Other good choices are the 4895s, Varget, Re-15, N140, W748 (i.e. pretty much any mediu burn rate rifle powder). I would suggest that you go to Hodgdon's website, and have a look at their data for IMR 4064 and 168 grain match bullets; work up your load from their published min to published max, and see how things go. I would suggest loading your bullets to 2.800" overall length (i.e. standard .308 Win "magazine length") to start you load development. You'll likely find that this will shoot reasonably well in your rifle. As you get up to max safe loads, you are basically approaching what "168 grain factory match ammo" is; most .308 rifles shoot that very well.